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Technical Specifications
Last Updated: 2026-10-23
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 902-0003-001 |
| Category | Robotics |
| Performance | |
| Torque |
12.0V212.40 oz-in15.29 kg-cm1.5 N-m |
| Speed |
12.0V0.17 sec/60°355.0 deg/s59.2 RPM |
| Running Current |
12.0V1.500 A1,500 mA |
| Stall Current | ≤1.5 A≤1500 mAAbove Average |
| Rated Output Power | 9.3 W |
| Physical | |
| Weight | 1.93 oz54.6 gTop 10% |
| Shape | Boxed |
| Dimensions |
L 1.969 in W 1.26 in H 1.575 in L 50.0 mm W 32.0 mm H 40.0 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | Cored |
| Motor Drive | MOS |
| Gears | Plastic |
| Gear Ratio | 254:1 |
| Rotation Mode | Continuous |
| Rotation/Support | Bushing |
| Control & Signal | |
| Modulation | Digital |
| Direction | Bidirectional |
| Rotational Range | 300° |
| Neutral Position | 512 µs |
| Angle Sensor | Potentiometer |
| Control System | TTL |
| Programmable | Yes |
| Resolution | 1,024 pulse/rev |
| Operating Modes | Position, Velocity (Wheel Mode) |
| Signal Voltage | 5V |
| Electrical & Environment | |
| Operating Voltage | 9–12 V |
| Power Source | External |
| Temperature | -5–70 °C23–158 °F |
| Certification | CE | ROHS | FCC |
| Idle Current | 0.050 A50 mA |
| Connectivity | |
| Connector | Molex |
| Wire Length | 200 mm7.87 in |
| Baud Rate | 7.8 Kbps–1 Mbps |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Weight | Top 10% Lighter than 95% of 145 Digital Large servos |
| Stall Current | Above Average Lower draw than 80% of 92 Digital Large servos |
Performance Analysis
| Shaft Power | 2.32 W |
| Power Density | 0.595 W/in³ More power-dense than 13% of 112 Digital Large servos |
| Torque Density | 3.8901 oz-in/g |
| Torque-to-Volume Ratio | 54.36 oz-in/in³ |
| Speed-to-Weight | 0.10837 (1/sec·g) |
| Speed-Torque Trade-off | 35.90 |
| Current-per-Torque Ratio | 0.0071 A/oz-in |
| Idle-to-Running Current Ratio | 0.033 |
| No-Load vs Stall Current Spread | 1.00 |
| Voltage Range Width | 3.0 V Wider voltage range than 44% of 124 Digital Large servos |
Notes
Recommended voltage is 11.1V. Stall torque is calculated at 20% for continuous load. 1024 steps/turn. Supports Wheel Mode (Endless Turn).
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Reviews (3)
Includes 3 reviews aggregated from around the web.
There are few reviews for this servo on the web. Builders on Arduino and Parallax forums call it nice, and one chose it for the 1024 positions and active feedback it offers for precise robot work.
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